🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`practicecore.study`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:1885^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:daf1^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.24.133^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.218.241^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dorthy.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3af9^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0f9^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dorthy.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20f9^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dorthy.ns.cloudflare.com`
		A	108.162.192.249^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	172.64.32.249^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
		A	173.245.58.249^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dorthy.ns.cloudflare.com`
NS	`earl.ns.cloudflare.com`
		A	2606:4700:58::adf5:3ba1^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a1^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`earl.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a1^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`earl.ns.cloudflare.com`
		A	108.162.193.161^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
		A	172.64.33.161^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
		A	173.245.59.161^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`earl.ns.cloudflare.com`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c08::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f26.1e100.net`
		A	2607:f8b0:4004:c08::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bi-in-f27.1e100.net`
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	2607:f8b0:4004:c1b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f27.1e100.net`
		A	142.250.31.26^{🇺🇸 Google142.250.31.0/24}
			PTR	`bj-in-f26.1e100.net`
		A	142.251.111.26^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
		A	172.253.63.26^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f26.1e100.net`
		A	172.253.63.27^{🇺🇸 Google172.253.63.0/24}
			PTR	`bi-in-f27.1e100.net`
TXT	`google-site-verification=H9JXfEmYB-yFd1BVKxp1igNblzn4ewJXtsckb-n2wgQ`
TXT	`v=spf1 include:_spf.google.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.24.133, 172.67.218.241
		IPv6 hints	2606:4700:3032::6815:1885, 2606:4700:3035::ac43:daf1
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=226, name=cloudflare-ech.com
SOA	`dorthy.ns.cloudflare.com`dns@cloudflare.com serial=2412559344

`study`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.study` ⭐
	NS	`b.nic.study`
	NS	`c.nic.study`
	NS	`x.nic.study`
	NS	`y.nic.study`
	NS	`z.nic.study`
	SOA	`a.nic.study`admin@tldns.godaddy serial=1787922894

Same first word

practicecore.org

practicecore.xyz

practicecore.study

Similar names

corepractice.io

corepractice.com.au

corepractice.is

corepractice.com

corepractice.app

corepractice.co.nz

corepractice.net

Previous names

Next names

DNS History

11 records (7 active, 4 former)

●NSdorthy.ns.cloudflare.com2026-08-21 → 2026-08-28 · 2 obs

● 2026-08-21 02:12:52
● 2026-08-28 13:41:38

●NSearl.ns.cloudflare.com2026-08-21 → 2026-08-28 · 2 obs

● 2026-08-21 02:12:52
● 2026-08-28 13:41:38

●MXsmtp.google.com2026-08-21 → 2026-08-28 · 2 obs

● 2026-08-21 02:12:52
● 2026-08-28 13:41:38

●A104.21.24.1332026-08-22 → 2026-08-28 · 3 obs

○ 2026-08-21 02:12:52
● 2026-08-22 03:32:22
● 2026-08-28 13:41:38

●A172.67.218.2412026-08-22 → 2026-08-28 · 3 obs

○ 2026-08-21 02:12:52
● 2026-08-22 03:32:22
● 2026-08-28 13:41:38

○A188.114.96.02026-08-21 → 2026-08-21 · 3 obs

● 2026-08-21 02:12:52
○ 2026-08-22 03:32:22
○ 2026-08-28 13:41:38

○A188.114.97.02026-08-21 → 2026-08-21 · 3 obs

● 2026-08-21 02:12:52
○ 2026-08-22 03:32:22
○ 2026-08-28 13:41:38

●A2606:4700:3032::6815:18852026-08-22 → 2026-08-28 · 3 obs

○ 2026-08-21 02:12:52
● 2026-08-22 03:32:22
● 2026-08-28 13:41:38

●A2606:4700:3035::ac43:daf12026-08-22 → 2026-08-28 · 3 obs

○ 2026-08-21 02:12:52
● 2026-08-22 03:32:22
● 2026-08-28 13:41:38

○A2a06:98c1:3120::2026-08-21 → 2026-08-21 · 3 obs

● 2026-08-21 02:12:52
○ 2026-08-22 03:32:22
○ 2026-08-28 13:41:38

○A2a06:98c1:3121::2026-08-21 → 2026-08-21 · 3 obs

● 2026-08-21 02:12:52
○ 2026-08-22 03:32:22
○ 2026-08-28 13:41:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
study	z.nic.study, x.nic.study, b.nic.study, y.nic.study...	12 records
practicecore.study	dorthy.ns.cloudflare.com, earl.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.32.249

NS records: dorthy.ns.cloudflare.com, earl.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for practicecore.study (unsigned zone)

⏱️ Timing

Total: 654ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.24.133, 172.67.218.241`
AAAA	2	`2606:4700:3035::ac43:daf1, 2606:4700:3032::6815:1885`
NS	2	`dorthy.ns.cloudflare.com, earl.ns.cloudflare.com`
MX	1	`smtp.google.com (pri: 1)`
TXT	2	`google-site-verification=H9JXfEmYB-yFd1B, v=spf1 include:_spf.google.com ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dorthy.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (z.nic.study, z.nic.study, x.nic.study...)

Analysis

IP Addresses

practicecore.study directs to four IP numbers, which are 104.21.24.133, 172.67.218.241, 2606:4700:3032::6815:1885 and 2606:4700:3035::ac43:daf1.

sebastian-bergstrom.se, linusmurphycoaching.com, healthaudit.co.nz plus two other host names have IP numbers in common with practicecore.study.

Name Servers

practicecore.study is delegated to two name servers: dorthy.ns.cloudflare.com and earl.ns.cloudflare.com.

The name server configuration of practicecore.study is shared with other domains, for instance pspmwood.com, webweeb.workers.dev, pakkret-songkran-2568.pages.dev and two others.

The name servers of practicecore.study overlap at least partially with those of other domains — among them deca.org.cn, junkcarbrevard.com, cf693.com and two more.

These name servers commonly appear alongside the name servers rayden.ns.cloudflare.com and ulla.ns.cloudflare.com.

Hosts with 6 IP addresses each:

dorthy.ns.cloudflare.com resolves to 108.162.192.249, 172.64.32.249, 173.245.58.249 and 3 other IP addresses.

earl.ns.cloudflare.com resolves to 108.162.193.161, 172.64.33.161, 173.245.59.161 and 3 other IP addresses.

Mail Servers

practicecore.study uses one mail server — smtp.google.com.

The mail server setup of practicecore.study matches that of other domains such as brookeessonart.com, druworks.com, latamtrust.com and two others.

At least some of the mail servers used by practicecore.study are shared with other domains: easyzon.it, eaglewingscinematics.com.sg, booststore.co.nz and two others among them.

The mail servers alt1.aspmx.l.google.com and alt2.aspmx.l.google.com are commonly paired with these mail servers.

smtp.google.com has 9 IP addresses: 142.250.31.26, 142.251.111.26, 142.251.163.27 plus 6 more.

practicecore.study - robtex.com